Non-Destructive Classification of Thai Cha-Nee Durian Maturity With Near-Field Reflection Mode Measurement Using a 3.4-GHz Microwave Sensor
- 10.2991/assehr.k.210203.135How to use a DOI?
- durian maturity, microwave sensor, fruit maturity measurement, reflection mode measurment
This paper proposes an investigation of Thai Cha-Nee durian maturity with reflection mode measurement using a simple microwave sensor based planar structure. The microwave sensor was a “Pencil-like shaped probe”, which were made of a FR4 laminate; dielectric constant (εr) = 4.4, dissipation factor (tan δ) = 0.018, substrate thickness (h) = 1.6 mm, and copper thickness (t) = 0.035 mm. The resonant frequency was designed at 3.4 GHz to avoid interferences from wireless communication channels. The distance between sensor and durian was recommended at less than 10 mm, due to near-field region. Referring to experimental results, durian maturity was predicted by reflection coefficient ∣Γ∣; ∣Γ∣immature ≥ 0.53, 0.28 ≤ ∣Γ∣semi-mature ≤ 0.43, ∣Γ∣mature ≤ 0.19, which achieved prediction accuracy at 91.55 – 99.0 %.
- © 2021, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Pakornkiat Sawetmethikul AU - Kittiwan Nimkerdphol PY - 2021 DA - 2021/02/04 TI - Non-Destructive Classification of Thai Cha-Nee Durian Maturity With Near-Field Reflection Mode Measurement Using a 3.4-GHz Microwave Sensor BT - Proceedings of the 6th UPI International Conference on TVET 2020 (TVET 2020) PB - Atlantis Press SP - 285 EP - 291 SN - 2352-5398 UR - https://doi.org/10.2991/assehr.k.210203.135 DO - 10.2991/assehr.k.210203.135 ID - Sawetmethikul2021 ER -